Overview of UKK Power Distribution Block
UKK power distribution blocks are modular devices designed for splitting and distributing high currents in electrical panels. Available in various models such as UKK80A to UKK500A, constructed with a copper conductor busbar y flame-retardant PA66 housing, the UKK series supports rated currents from 80 A to 500 A, ensuring stable and low-resistance connections in industrial environments.
These blocks are available in multiple configurations, such as 1 de cada 6 fuera y 1 in 11 out, making them versatile for a variety of control and energy distribution systems. The modular structure enables flexible installation on DIN rails or direct panels.
Características principales:
- Modular and scalable design
- Suitable for multiple cable sizes and voltages
- DIN rail or screw mountable for easy installation
Applications in Industrial Control Cabinets
UKK power distribution blocks play a crucial role in the wiring and operation of modern industrial control cabinets. They are specifically designed to handle the distribution of high currents from a main supply to multiple automation devices within one enclosure.
Typical Uses:
- Linking main busbars with sensors, relays, or contactors
- Enabling organized, safe splitting of main power sources
- Facilitating quick maintenance and upgrades through modular expansion
Benefits:
- Improved wiring order
- Safer branch distribution
- Reduced installation time
For installation steps and best practices, refer to our detailed guide on how to Install UKK DIN Rail Terminal Block for tips on securing blocks, proper torque, and safe wiring techniques.
Applications in Power Distribution Panels
In power distribution panels for buildings and factories, UKK blocks are ideal for integrating:
- Mother bus systems and backup branches
- Remote/alternative energy sources (solar, generator)
- High-current delivery to essential loads like lighting, HVAC, and emergency systems
Advantages:
- Clearly labeled outputs for hassle-free inspection
- Robust terminals for reliable, safe connections
- Enhanced system flexibility
These blocks support both AC and DC wiring, operating up to 690 V, and are certified by UL, VDE, CE, and RoHS.
Because each block is modular, expansion or replacement is quick — simply detach from the DIN rail and add another module without reworking the wiring.
Advantages in Automation and Energy Systems
The UKK series stands out in automation and renewable energy applications due to its modularity, durability, and safety features.
Key Advantages:
- Space-Saving Design: Multiple outputs from a single input reduce wiring footprint.
- Tool-Free Maintenance: Quick screw access and transparent cover improve visual inspection.
- Thermal Stability: The copper alloy busbar ensures consistent conductivity under continuous load.
- Scalability: Supports multi-circuit expansion for automation and energy storage systems.
Used in solar power distribution, battery management systems, and industrial robot control panels, these blocks enable reliable current transmission with low voltage drop — a key factor in maintaining power efficiency.
Choosing the Right Model for Each Application
Selecting the correct UKK model depends on several parameters: rated current, wire gauge, installation environment, and load type.
Steps to Select the Right Block:
- Analyze current rating and wire sizes for each circuit
- Match UKK models to output numbers and insulation requirements
- Consider installation environment (cabinet size, access, regulatory needs)
- Consult technical datasheets or experts for special projects
For Example:
| Modelo | Current Rating | Input Cable | Output Terminals | El mejor caso de uso |
| UKK80A | 80A | 1×16mm² | 4×6mm², 2×16mm² | Small automation cabinets |
| UKK400A | 400A | 1×185mm² | Multi-output | Industrial power panels |
| UKK500A | 500A | 1×240mm² | Multi-output | Large-scale energy systems |
For high-current applications, choose models above 250 A to ensure minimal resistance and proper heat dissipation.
Each model is compatible with AOSI Power Distribution Modules, allowing modular expansion when future circuits are added.
Need help choosing the right UKK model?
FAQs—UKK Power Distribution Block Applications
A1: A UKK block splits one incoming supply into multiple outputs, simplifying control cabinet wiring for PLCs, contactors, relays, and sensors. It delivers safe, compact branching with a copper busbar and flame-retardant housing.
A2: Yes. UKK blocks are commonly used up to 690 V AC/DC in industrial automation, lighting, and energy systems, provided the model’s ratings are respected.
A3: Match the wire range on the input and output terminals (e.g., 10–25 mm² input, 2.5–10 mm² output on smaller models). Use correct par de torsión to avoid overheating or loosening.
A4: Most models (e.g., 80–250 A) snap on 35 mm DIN rail; very high-current versions may use panel mounting. Always secure end-stops to resist vibration.
Conclusión
UKK power distribution blocks provide a flexible and reliable solution for modern industrial and commercial power systems. Their modular design, high current handling, and safety features make them ideal for a wide range of applications, from control cabinets to automated energy systems.
Choosing the right UKK model and following best installation practices ensures long-term system efficiency, scalability, and safety for all your electrical distribution needs.
